This post describes the stuff I did to my Raspberry Pi 2, which is the current acting home server. These configuration steps are probably useful for everyone.
dhcpcd5 dphys-swapfile raspi-config triggerhappy bluez*dhcpd5 interferes with /etc/network/interfaces - it makes configuring the network more complicated.dphys-swapfile configure a swap file in the root partition - I have no idea why anyone wants that. triggerhappy not entirely sure what it does, probably useless - I have never used it. raspi-config messes with your CPU frequency governor at boot, of course you want to use the performance governor.bluez* are the Bluetooth related things. I don't use Bluetooth. /etc/rc.local, so your IP address doesn't come up in the boot screen - I found it weird. sysfsutils/etc/sysfs.conf, these ensures that your CPU always runs at the fastest speed. You should be using zswap anyway. devices/system/cpu/cpu0/cpufreq/scaling_governor = performance devices/system/cpu/cpu1/cpufreq/scaling_governor = performance devices/system/cpu/cpu2/cpufreq/scaling_governor = performance devices/system/cpu/cpu3/cpufreq/scaling_governor = performance module/zswap/parameters/enabled = 1